skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Extracting metal ions with diphosphonic acid, or derivative thereof

Abstract

Thermodynamically-unstable complexing agents which are diphosphonic acids and diphosphonic acid derivatives (or sulphur containing analogs), like carboxyhydroxymethanediphosphonic acid and vinylidene-1,1-diphosphonic acid, are capable of complexing with metal ions, and especially metal ions in the II, III, IV, V and VI oxidation states, to form stable, water-soluble metal ion complexes in moderately alkaline to highly-acidic media. However, the complexing agents can be decomposed, under mild conditions, into non-organic compounds which, for many purposes are environmentally-nondamaging compounds thereby degrading the complex and releasing the metal ion for disposal or recovery. Uses for such complexing agents as well as methods for their manufacture are also described.

Inventors:
 [1];  [1];  [1]
  1. (Argonne, IL)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
869404
Patent Number(s):
US 5332531
Assignee:
Arch Development Corporation (Chicago, IL) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
extracting; metal; diphosphonic; acid; derivative; thermodynamically-unstable; complexing; agents; acids; derivatives; sulphur; containing; analogs; carboxyhydroxymethanediphosphonic; vinylidene-1; 1-diphosphonic; capable; especially; ii; iii; oxidation; form; stable; water-soluble; complexes; moderately; alkaline; highly-acidic; media; decomposed; mild; conditions; non-organic; compounds; purposes; environmentally-nondamaging; degrading; complex; releasing; disposal; recovery; methods; manufacture; described; extracting metal; form stable; water-soluble metal; complexing agents; organic compound; organic compounds; complexing agent; soluble metal; phosphonic acid; diphosphonic acid; mild conditions; sulphur containing; acid derivatives; acid derivative; acidic media; methanediphosphonic acid; thermodynamically-unstable complexing; carboxyhydroxymethanediphosphonic acid; diphosphonic acids; containing analogs; /588/423/

Citation Formats

Horwitz, Earl P., Gatrone, Ralph C., and Nash, Kenneth L. Extracting metal ions with diphosphonic acid, or derivative thereof. United States: N. p., 1994. Web.
Horwitz, Earl P., Gatrone, Ralph C., & Nash, Kenneth L. Extracting metal ions with diphosphonic acid, or derivative thereof. United States.
Horwitz, Earl P., Gatrone, Ralph C., and Nash, Kenneth L. Sat . "Extracting metal ions with diphosphonic acid, or derivative thereof". United States. https://www.osti.gov/servlets/purl/869404.
@article{osti_869404,
title = {Extracting metal ions with diphosphonic acid, or derivative thereof},
author = {Horwitz, Earl P. and Gatrone, Ralph C. and Nash, Kenneth L.},
abstractNote = {Thermodynamically-unstable complexing agents which are diphosphonic acids and diphosphonic acid derivatives (or sulphur containing analogs), like carboxyhydroxymethanediphosphonic acid and vinylidene-1,1-diphosphonic acid, are capable of complexing with metal ions, and especially metal ions in the II, III, IV, V and VI oxidation states, to form stable, water-soluble metal ion complexes in moderately alkaline to highly-acidic media. However, the complexing agents can be decomposed, under mild conditions, into non-organic compounds which, for many purposes are environmentally-nondamaging compounds thereby degrading the complex and releasing the metal ion for disposal or recovery. Uses for such complexing agents as well as methods for their manufacture are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

Patent:

Save / Share: